Gas burner



Aug. 17, 1926. I

H. M. REEVES ET AL GAS BURNER Filed NOV. 13. 1924 Patented Aug. 17, 1926.

tlhllTED STATES 'PATENT OFFICE.

HERBERT M. REEVES AND CARL EL FROELICI'I. OF IRONTON, OHIO, ASSIGNORS TO THE IRONTON STOVE & MANUFACTURING 00., 0F IRONTON, OHIO, A CORPORATION OF OHIO.

GAS BURNER.

Application filed November 13, 1924. I Serial No. 749,726.

Our invention has for its purpose the construction of a multiple gas burner which shall be noiseless inoperation and which shall make possible an even flame throughout the burners. As is well known, in multiple burners in which aseries of alined burncrsare provided, the fuel being introduced below the burners at one extremity of the series, a very uneven flame results. This is caused by the fact that pressure tends to pile up progressively towards the end of the se ries, away from the point of fuel introduction, and the tips of the flames will lie in a line sloping upwards from the burner nearest the point of fuel introduction. This disadvantage has been obviated to a great extent, in known structures, by the use of a' gooseneck feed pipe within a chamber common to all the burners. The purposes of the present invention are attained by the provision of a fed pipe within such a common chamber, said feed pipe being provided with an elongated aperture at its end remote from the point of fuel introduction, said aperture 1 p being so disposed as to direct the incoming gas first to the bottom of the chamber. In this manner we obtain a very thorough mixing of the gas and air, and an absolutely even flame throughout the length. of the burner. Our invention will be described in particular with reference to the annexed sheet of drawings in which:

Fig. 1 is a top plan view of the burner;

Fig. 2 is a vertical longitudinal section on the line 22 of Fig. l;

Fig. 3 is a bot-tom view of the improved feed pipe; and

Fig. 4 is a vertical transverse section of Fig. 1, on the line 4-4. I

Referring now to the drawings, 1 is a hollow cylindrical chamber provided at its top with the burners 2 in which may be inserted the noncorrodible tips 3. The chamber which is closed at one end by a permanent wall 4, is open at the other end to permit the insertion of the feed pipe 5. The latter is provided with a flange 6 for contacting with the end of chamber 1, and is secured thereto by means of screws 7 The pipe 5 is provided with a choke 8, and its lower half is removed to an extent approximately half the extent to which the pipe protrude With" in the chamber whereby an elongated aperture 9 is formed at its end remote from the flange 7. The inner end of the pipe .5 is

closed with a wall 10 and the. aperture 9 is preferably made as shown .in Fig. 3, with angularlips 11 at its longitudinal extremities. The chamber 1 is adapted to be supported in horizontal position by means of pedestals 12, attached thereto by means of screws 13.

To the two spacing members 14-integral with the 'flange 6 is attached the control valve assembly 15. This valve assembly includes a needle valve-for enabling the gas to be accurately controlled, this needle valve having the screw spindle 16, and knurled head 17 for its control. As will be seen the orifice of the needle valve is spaced suitably from the intake end of pipe 5, so that a jet of gas in contact with air may be directed into the pipe. In order to relieve screws 7 of unnecessary strain a supporting member 18 may be provided for the inner end of the While the pipe 5 may be provided with an aperture or apertures of different shape from that described, we have found that an aperture suchas described gives the best results. In any event the efficiency of the arrangement depends on an aperture or apertures in the bottom wall of the feed pipe and the end remote from its intake end. The lips 11 serve to split the incoming current of gas in some measure, and divert it to opposite sides of the chamber 1. It will be seen that an incoming current of gas will have both a tendency to expand as soon as it reaches the aperture 9 and a tendency to continue to the end of the pipe, this latter tendency prevailing to a great degree. Upon reaching the end of the pipe the current impinges against the wall 10, whereby it is backed up and forced to return along the exterior of pipe 5. By the development of these conflicting currents a very thorough mixing or rolling of the gas and air is attained and moreover a very efficient distribution to all of the burners 2.

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invention consists in the provision of means for directing the incoming gas primarily to the bottom of the mixing chamber and pref erably at the end thereof remote from the intake end. i I

Having thus described our invention, We claim:

1. Ina gas burner, the combination of an elongated chamber, a plurality ,of burners arranged on the upper side of said chamb r,

means for introt-Lncing fuel into said aperture on its lower. side adjacent its inner end only.

3. In a gas burner, the combination of a horizontal cylindrical: chamber, a plurality of burners arranged on the upper s deof said chamber, a pipeextendinp; into said cham substantially. the full length thereof for introducing fuel, therein, said pipe having:

an elongated aperture in its lower side adjacent its inner end only.

4. In a gas burner, the combination of a horizontal cylindrical chamber, a plurality of burners arranged on the upper side of said chamber, a pipe extending into said chamber substantially the full length thereof for introducing fuel therein, said pipe being closed at its extremity and being apertured in its lower side only adjacent its inner end and beyond the longitudinal median of said chamber, said aperture having an angular 535' at" its innermost edge.

o. In a gas burner, the combination of. a

of. burners arranged on the upper side of said chamber, a pipe extending into said, chamber substi'antial'ly the full length thereof for'introducing fuel therein, said pipe hav horizontal cylindrical charnb r, aplurality,

i an elongated aperture in its lower side he foregoing specification signed atIron-' ton, Ohio, th isQOth day of @ctober, 1,924.

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